Cerwin-Vega CVA-121 - 21" Active Powered Subwoofer

Cerwin-Vega CVA-121 - 21" Active Powered Subwoofer

Cerwin-Vega CVA-121 - 21" Active Powered Subwoofer

Cerwin-Vega CVA-121 - 21" Active Powered Subwoofer

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Product Highlights

  • 21" Driver in 18" Cabinet Form Factor
  • 1200W RMS, 2400W Peak
  • On-board Parametric Equalizer
  • 4-Position High Pass Filter
  • Sweepable Low Pass Filter
  • Master/Slave For Multiple Subs
  • Head Dissipating Cast Aluminum Grill
  • 18mm Solid Hardwood Enclosure
  • 35mm Pole Sockets
  • Includes Removable Casters
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Cerwin-Vega CVA-121 overview

  • 1Description

The Cerwin-Vega CVA-121 - 21" Active Powered Subwoofer is designed for low frequency live sound reinforcement applications. The subwoofer uses a custom 21" woofer using Cerwin Vega's Stroker three spider technology for improved cone excursion and voice-coil efficiency. The technology provides a pair of double inverted spiders to control linearity and maintain a smooth excursion, with a third spider to provide a third plane of support. The third spider also helps keep the surround from pulling the cone.

The subwoofer features a built-in amplifier with 1,200W RMS continuous output and 2,400W peak output. The amplifier includes an on-board parametric equalizer that allows you to dial in the appropriate sub response for each venue. You can bump frequencies that need more emphasis or cut frequencies that occur from room corner loading or wall boundary conditions. The unit also includes a 4-position high pass filter and a sweepable low pass filter for selecting the appropriate crossover points. A cast aluminum grille protects the woofer and functions as a heat-sink to minimize power compression and optimize driver performance.

The subwoofer is constructed of solid 18mm hardwood in the footprint of an 18" subwoofer box. It features XLR and 1/4" TRS connectors, master/slave output connectors for daisy-chaining multiple CVA subwoofers using a single signal. A top-mounted 35mm pole socket accommodates a satellite speaker for full range performance and removable casters make it easier to transport the subwoofer from gig to gig.

18" Cabinet Footprint
Fits custom 21" (53.3cm) Woofer in a more compact form factor
Double Inverted Spider Suspension
Cancels non-linear driver movement for smoother excursion
Upper Shorting Ring
Provided enhanced cooling of the voice coil
Lower Shorting Ring
Reduces distortion for improved audio accuracy
Aluminum Tube Vent
Helps cool the voice coil
Aluminum Tube
Acts as a heat sink by providing air flow through the vented pole
Third Spider
Provides an additional structural plane for support, reliability, and higher SPL levels
Carbon Fiber Content in Cone
Provides enhanced strength, toughness, and rigidity
Plate Amplifier
Powers the custom 21" (53.3cm) woofer with 1,200 W RMS and 2,400 W peak
On-Board Parametric Equalizer
Allows you to control the gain, frequency, and Q with variable low-pass and selectable high-pass filter controls
4-Position High Pass Filter
Enables tuning the subwoofer response to the room
Sweepable Low Pass Filter
Allows you to select the subwoofer's crossover point
Master/Slave Output
Allows for the system to scale with the connection of multiple subwoofers through daisy-chaining
Cast Aluminum Grille
Protects the woofer and acts as a heat sink by reducing power compression
Removable Casters
Enables transport of the subwoofer from gig to gig
35mm Pole Socket
Accommodates single or multiple CVA-28s speakers using the CVA accessories
In the Box
Cerwin-Vega CVA-121 - 21" Active Powered Subwoofer
  • Power Cord
  • 4 x Removable Casters (2-Fixed & 2-Swivel)
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description

    Cerwin-Vega CVA-121 specs

    System Type 21.0" (53.3 cm) active subwoofer
    Power Capacity Continuous RMS: 1,200 W
    Peak: 2,400 W
    Frequency Response 35 to 135 Hz (±3 dB)
    Frequency Range 32 to 135 Hz (-10 dB)
    SPL 135 dB at 2,400 W
    Sensitivity 101 dB (1 W / 1 m)
    Driver SW21A, 21.0" (53.3 cm) with Stroker technology
    Voice Coil 4.0" (10.2 cm)
    Construction 18 mm hardwood
    Power Rating 1,200 W RMS / 2,400 W peak
    Input Connectors 2 x XLR/F balanced
    2 x 1/4" TRS
    Output Connectors 2 x XLR/M
    2 x 1/4" TRS
    XLR/M Slave
    Crossover Control Variable LPF: 65 to 130 Hz
    HPF: 25 Hz
    HPF: 65, 85, 130 Hz
    Variable LPF: 65, 130 Hz
    Polarity Switch: 0 - 180
    Parametric Equalizer Gain, Frequency, Q
    Power Consumption (Idle) No more than 20 W
    Dimensions (H x W x D) 31.75 x 23.50 x 23.50" (806.45 x 596.90 x 596.90 mm)
    Weight 180.0 lb (81.6 kg)

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